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Answer the following problems.

problem 1) prepare down the difference between a conventional cellular radio system and a space based (satellite) cellular radio system?

problem 2) For the power delay profile compute the 90% correlation bandwidth.

problem 3) Describe how are PCS systems different from conventional cellular system like AMPS?

problem 4) If the US AMPS cellular operator is allocated 12.5 MHz for each simplex band, and if Bt is 12.5 MHz, Bguard is 10 KHz and Bc is 30 KHz, determine the number of channels available in an FDMA system.

problem 5) If the normal GSM time slot consists of six trailing bits, 8.25 guard bits, 26 training bits and two traffic bursts of 58 bits of data, determine the frame efficiency.

problem 6) Distinguish between wireless and fixed telephone networks.

problem 7) prepare down major features of GSM.

problem 8) What is the spectral efficiency of the GMSK modulation scheme used in GSM.

problem 9) Name the cellular system which uses the most bandwidth efficient modulation.

problem 10) Briefly describe IEEE 802.11 services.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M98547

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